Brake-beam fulcrum-block.



PATENTED JUNE 20, 1905 B. P. LAMONT. l BRAKE BEAM FULGRUM BLOCK.

APPLICATION FILED JAN. 19, 1904.

l/ I/ ll/ ATTORNEY.

Unirse STATES Patented June 20, 1905.

Aisivr erica.

.ROBERT P. LAMON'T, OF CHICAGO, ILLINOIS, ASSIGNOR TO SIMPLEX RAILWAY APPLIANCE COMPANY, OF CHICAGO, ILLINOIS, A COR- PORATION OF ILLINOIS.

BRAKE-'BEAM FULCRUNl-BLOCK.

SPECIFICATION forming part of Letters Patent No. 792,907, dated J une 20, 1905.

Application led January 19, 1904. Serial No. 189,674.

To f/,ZZ 1071/0771/ t may concern:

Be it known that LRoB ERT P. LAMONT, a citi- Zen of the United States, residing at Chicago, in the State of Illinois, have invented certain new and useful Improvements in Brake-Beam Fulcrum-Blocks, of which the following is a specification.

My invention relates to the brake beams used upon railway cars and the like and particularly to metallic fulcrums to be used on commercial iron brake beams. The objects of the invention are to form a two-piece fulcrum block which is easily removed or applied to its place, and is yet quite rigid to hold the brake lever; to provide a fulcrum block which allows a wide radius of movement of the brake lever therein, to generally improve and chcapen the construction of fulcrum blocks. These advantages are attained by the construction illustrated in preferred form in the accompanying drawing' wherein,-

Figure l is a partial cross-section of a brake beam and a side elevation of the fulcrum block placed thereon;

Figure 2 is a side elevation of the fulcrum block looking in the direction of the plane of the brake lever, and

Figure 3 is an end view of the same. i

In order to overcome the difficulties met in putting the fulcrum block upon the brake beam by slipping it over the end thereof, which requires the removal of the brake head, it is desirable to make the block in two separable pieces. But in the ordinary construction of a two-piece block where the spacing apart of the brake lever jaws is provided by an abutment inside the pin which holds the brake lever, the result is a ratherriimsy structure. I overcome this diiiculty by fastening the two outermost ends of the brake lever jaws and at the same time avoid any extraordinary length of the jaws or a cramped space for the brake lever by providing such an attachment of the two parts as will take up a small amount of material and will allow a large range of angular play of the brake lever.

In the drawings a represents a partial section of the brake beam and it will be seen that this is embraced by the two iiange jaws, L, of the fulcrum block. The forwardly eX- tending jaws c of the block are designed to lie on the two sides of the brake lever, indicated in position by dotted lines in Figure 1, and they are provided with openings at f to receive the pin for holding the brake lever. At the outer end the two jaws c are firmly fastened together by means of a cylindrical spacer block Z which is held in place and secured to the jaws by means of a bolt or rivet c. It will be seen thatloy this construction the spacer Z does not take up much room and is of such form and position as to allow a very wide play of angularity of the brake lever and at the same` time secure the two jaws together so as to make it as firm as the ordinary one-piece fulcrum block, While the lever is pivoted inside the engaged ends of the jaws and induces no strain upon the jaws in action. Other advantages of the device will readily occur to those familiar with the art.

Having thus described my invention and illustrated its use, what I claim as new, and desire to secure by Letters Patent, is the following:

1. A brake beam fulcrum block comprising two forged pieces having {iange portions to engage the brake beam and forwardly extending parallel jaws perforated to receive the brake lever bolt and attached outside the brake lever by means of a pin, substantially as described.

2. A brake beam fulcrum block comprising two forged bars provided with parallel flat jaws for the brake lever, said jaws being perforated to receive the brake lever bolt and being attached to each other at the outer end by means of a spacer and a bolt therethrough, whereby the full play of the lever within the jaws is not obstructed by the attaching means of the jaws. v

3. A brake beam fulcrum block comprising two separable plates provided with means for engaging the brake beam and having for-l In testimony whereof I have hereunder wardly extending parallel jaws, a cylindrical signed my name in the presence of the two spacing block in the eXtreme end of said jaws, subscribed witnesses.

and a bolt or rivet passing through the two o ROBERT P. LAMONT. 5 jaws and the spacer to hold the parts rigidly Witnesses:

together outside of the position of the brake PAUL CARPENTER,

lever, substantially as described. ALBERT C. HOWARD. 

